Populating the Suffix With 1,000,000 Sample Directory Entries

As you move from 100,000 entries to 1,000,000 entries, you no longer
have enough space on a system with 4 gigabytes of physical memory to include
all entries in the entry cache. You can begin by importing the data and examining
the size it occupies on disk.

Given a database cache this large and only 4 gigabytes of physical memory,
you cannot fit more than a fraction of entries into the entry cache for the
suffix. Here, set entry cache size to one gigabyte, and then prime the cache
to see the change in the process heap size.